What year is your car?

 

07 with a cic unit

 

Might try this:

To completely reboot your car control computer (I-Drive, Navigation, Audio), hold down both eject buttons for the DVD and CD drives while pushing the radio power knob. This causes the system to reboot from scratch but doesn't lose any of your presets or stored information. When you turn the car off and back on again it doesn't completely reboot the system, at least not to this degree.

 

Thanks for the input will try that

 

Sorry about the slow response, I've been traveling.

It's most likely the MULF.

It's behind the back seat on the drivers side in the passenger compartment.

Remove the bottom of the back seat and then the back, and you'll see it.

That controls BT and more. Looks like this:
BMW E81 E90 E91 E60 E61 E63 F01 F02 E70 E71 E89 MULF2 Bluetooth Ulf Module High | eBay

 

Thanks for the advice will take a look this weekend

 

Mine's still having same issue as OP. Have you found the culprit in your system? If I unplugged this component completely, and nothing changed then can I assume it's the culprit?


2007 M6
2011 Ducati 1198
2003 M3
1998 M3

 

If you disconnect it without putting in a jumper for the optical cable you'll get no sound at all.

 

Surprisingly it has stopped there has been no issue crazy

 

If that's the case and there's already no sound coming from the system whatsoever, then I should see no change right? So I'm wondering if this could pinpoint what my cars problem is?


2007 M6
2011 Ducati 1198
2003 M3
1998 M3

 

Ok thanks for the great advice will keep you updated

 

I had the SOS issue and the Bluetooth/SOS stopped working. I replaced the battery and now everything works again. One key note is that when I would start the car, I would sometimes get the high drain battery message as well.